Table 1:

Quantitative susceptibility and R2* values for nodular-enhancing, shell-enhancing, nonenhancing < 1 year, and nonenhancing 1–3 years old lesions

NodularShellNonenhancing < 1 YearNonenhancing 1–3 Years
No. of lesions77324841
No. of patients32212720
Susceptibility relative to NAWM, ppb0.5 ± 4.410.2 ± 5.420.2 ± 7.833.2 ± 8.2
R2* values relative to NAWM, Hz−5.6 ± 2.9−8.0 ± 2.6−3.1 ± 2.3−2.0 ± 2.6
  • Note:—NAWM indicates normal-appearing white matter; ppb, parts per billion.